What modifications are necessary to convert a 4G63 non turbo to turbo?

Hi,I want to install turbo charger on my 4G63 non turbo galant, but I wonder what modification are necessary to be done inside the engine. Is it enough to replace the pistons with the pistons whose compression ratio are 7.8/1 ? The other question is the ECU, if I use the origanal ECu of my own car, does it get me into troubles? for example poor fuel mileage or poor performance ...

agreed with littlehorn,you can buy one cheeper .if you attempt this you will have nothing but trouble.this is also the only answer you will get from any of us that know what we are doingor talking about. denden,notice you dont have a clue of how to answer this man's question.

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